Request Headers Incomplete

I want to get the Ajax requests by using a proxy,

My proxy is set up like this:

var http = require('http'),
    httpProxy = require('http-proxy')


function startProxy(){


var proxy = httpProxy.createProxyServer({target:'http://localhost:4200'});

var server = http.createServer(function(req, res) {
  proxy.web(req, res);
  console.log(req.headers)
});
console.log("listening on port 3200")
server.listen(3200);

}

And I want to access this : Request Headers

but all I have in my console when I log the req.headers is this :

console

can anyone help me?

via Cornez Corentin